/* ...existing code... */
.top-bar {
    display: flex;
    justify-content: space-around;
    align-items: center;
    background: linear-gradient(90deg, #007bff, #00c6ff);
    padding: 15px 0;
    border-bottom-left-radius: 20px;
    border-bottom-right-radius: 20px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
}

.top-bar button {
    background: none;
    border: none;
    color: white;
    font-size: 16px;
    font-weight: bold;
    padding: 10px 20px;
    border-radius: 10px;
    transition: background-color 0.3s ease, transform 0.2s ease;
    cursor: pointer;
}

.top-bar button:hover {
    background-color: rgba(255, 255, 255, 0.2);
    transform: scale(1.1);
}

.top-bar button.active {
    background-color: rgba(255, 255, 255, 0.3);
}

.top-bar button img {
    width: 16px;
    height: 16px;
    margin-right: 5px;
}
/* ...existing code... */